one of the things that schools are doing that we are working .中两个that可以去除吗?how excited that .

one of the things that schools are doing that we are working .中两个that可以去除吗?how excited that .
one of the things that schools are doing that we are working .中两个that可以去除吗?
how excited that .

one of the things that schools are doing that we are working .中两个that可以去除吗?how excited that .
原句是不是应该是one of the things is that schools are doing that we are working
如果是这样的话,第一个that不能去,因为引导的是表语从句.第二个that能去,它引导的是宾语从句.
你记住,that在主语/定语（that作从句的主语)/表语/同位语从句中绝对不能省!

这个句子有问题。没谓语。